Investigation of efficiency of iron nanoparticles on the orange peel in removal of sunset yellow dye from aqueous environment

Document Type : Original Article


1 Department of Chemistry, Faculty of Science, University of Guilan P.O. Box 1914, Rasht 0098, Iran

2 Department of Chemistry, Faculty of Science, University of Guilan P.O. Box 1914, Rasht 0098, Iran.


In this study, the removal of sunset yellow dye from aqueous solutions using orange peel powder (OPP) as an agricultural waste and modified by co-precipitating it with Fe3O4 magnetic nanoparticles (MNP-OPP) as adsorbents by a batch system was investigated. The effects of some important physical and chemical parameters such as the initial dye concentration, sorbent dosage, exposure time, temperature and pH, on the sorption of selected dye by introduced adsorbents were investigated. Optimum conditions for the removal of dye were determined. Among the different parameters investigated, it was found that the pH of the solution has the most pronounced effect on the sorption capacity of OPP and MNP-OPP. The experimental data were analyzed using Langmuir, Freundlich, Temkin and Dubinin-Radushkevich (D-R) isotherm models. The results indicate that the Freundlich and the Langmuir models provide the best correlation for SY-OPP and SY-MNP-OPP systems, respectively. The results indicated that orange peel modified with Fe3O4 nanoparticles is suitable as adsorbent material for adsorption of sunset yellow dye from aqueous solution.


Main Subjects

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